Perfis de PCR-DGGE de comunidades bacterianas associadas ao rizoplano de milho sob diferentes doses de adubação com compostos orgânicos
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Data
2009-06
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Resumo
Organic matter is considered the main component of soil quality because it contributes direct or
indirectly to many chemical, physical and biological soil properties. In this context, adding organic compost to soil is
becoming an ever increasing popular agricultural practice adopted to improve soil quality, as well as, to make good use of
organic residues. An experiment was installed at Estância County (SE, Brazil) to evaluate the effects of organic compost
and chemical fertilizer application on the bacterial community associated to maize rhizoplane. The use of organic compost
led to changes in bacterial community associated to maize rhizoplane, being observed an increase on the richness of some
bacterial groups, which was a reflex on the increase of rare bands number under this treatment. Among organic compost,
only Silt (10 ton.ha -1 ) and chicken (40 ton.ha -1 ) composts affected the bacterial communities associated to maize
rhizoplane. The effects on bacterial communities are related to the input of organic matter into soil. The PCR-DGGE based
method showed to be reliable to evaluate the impacts of different agricultural managements on the soil bacterial
populations.
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Marcador molecular, Composto orgânico, 16S rDNA, Zea mays, Molecular marker, Organic compost, 16S rDNA, Zea mays
Citação
FERREIRA, Enderson Petrônio de Brito; NUNES, Maria Urbana Corrêa; XAVIER, Gustavo Ribeiro; RUMJANEK, Norma Gouvêa. Perfis de PCR-DGGE de comunidades bacterianas associadas ao rizoplano de milho sob diferentes doses de adubação com compostos orgânicos. Bioscience Journal, Uberlândia, v. 25, n. 3, p. 41-50, maio/jun. 2009.